Wire-stretcher attachment



F. w. SCHUMACHEB. WIRE STRETCHEH ATTACHMENT. APPLICATTON F-ILED JUNE 7,I919.

1,333,097. Patented Mar. 9,1920.

' residing at Shawano, in tlie county of Shawano and State of Wisconsin,have in- To all whom it may concern:

Be it knownthat I, FRANK W. Sonn MAOHER, a citizen of the United States,

vented certain new and useful Improvements inWire-StretcherAttachments;ofwhich the following is a specification.

This invention relates to wire stretchers, and more particularly toattaching means therefor.

The object of the invention is to provide eflicient attaching means forconnecting a wire stretcher to around support.

Another object is to so construct such a device that it may be usedeffectively on posts of varying sizes.

With the foregoing and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of constructionhereinafter'described and claimed, it being understood that changes inthe precise embodiment of the invention herein disclosed may be madewithin the scopeof what is claimedwithout departing from the spirit ofthe invention.

In the accompanying drawings Figure 1 represents a side elevation of thedevice constituting this invention shown applied,

Fig. 2 is a top plan view thereof, and

Fig. 3 is in enlarged detail perspectii e view of the attachmentdetached.

The attachment constituting this invention comprises a curved plate 1having two series of penetrating elements 2 and 3 on its inner face,said elements being shown in the form of spurs, and those of one seriesbeing in circumferential alinement with each other and longitudinallyalined with those of the other series, the spurs of series 2 beingnumbered 4, and three ofwhich are shown. three similar series 3, (seeFig. 3).

.An apertured ear 6 extends from one side spurs 5 being shown in edge ofthe plate l preferably midway its ends, and in a plane between theseries of spurs 2 and 3. A hook 7 projects from the other side edge ofplate 1 at a point opposite v the ear 6 and is designed to detachablvengage one of the links of a chain 8 which is permanently secured at oneend to the apertured ear 6.. This chain 8 is designed to s peci'ii cation of Letters Iatent. v

pass around one side "of the post P to that-on whichthe plate 1is'arranged, as is shown clearly in Fig. 2, andwhen it has forcedbetween the chain and the clamplngly engage plate I with the post'and tocause the spurson' its inner face to penetrate the post as is shownclearly in Fig. 2.1 A peripherally grooved pulley 10 is rotatablymounted between two bracket arms 11 5" and 12 which project laterallyfrom the outer face of plate 1. This pulley 10 is designed to receivethe wire W to a portion of which is engaged with. a stretcher S ofanysuitable construction.

By arranging the spurs 4 and 5 on the curved inner face of plate 1, thisattaching device may be used in connection with round postsofvarying'sizes, for instance, if the casting or plate 1 is constructedto fit snugly around a six and a half inch post, all six of the points 4and 5 will contact with the 7 post at the same time, and will penetratethe body thereof when pressure is brought to bear onthe stretcher. 7 ingbe used on a five inch post, the center spurs 4 and 5 will penetrate thepost while the spurs on opposite sidesthereof, will simply contacttherewith and operate as steadying devices. be applied to a seven inchpost, the end spurs ofthe series will beforced into the post until thecenter spurs contact with it,

and they operate as steadying means when so used. It willthus be seenthat a'single casting may be used on round posts, varying from five toeight inches in diameter, more or less. 7

In using this device, the wire Wis run along one side of the fence towhich it is to be secured and is passed around the pul ley 10 to thewire stretcher S on the other side of the post P, and this stretcher isthen actuated in the the wire.

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and of V themethod of operation will be readily apordinary manner to tighten parentto those skilled in the art to which 105 the invention appertains andwhile I have described the principle of operation of the inventiontogether with the device which I Patented Mar. 9,,192 Application filedJune'7, 1919; Seria1N '0. 3O2,6 2 3i opposed 55 i be stretched, I

Now, if this same cast- 80 Should this same plate 86 now consider to bethe best embodiment thereof, I desire to have it understood that thedevice shown is merely illustrative and that such changes may be made asare within the scope of the claimed invention.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. Anattachment of the class described comprising a curved plate havinglongitudinally spaced circumferentially arranged series of penetratingelements on its inner face, those in one series being 111circumferential ahnement wlth each other and 1n longitudinal alinementwith those of the other series, and means for connection with a chaincarried by the side edges of said plate at points between the series ofpene- 7 rating elements so that pressure brought to bear by said chainwill uniformly force said elements into operative position. i p

2. An attachment of the class described comprising a circumferentiallycurved plate having longitudinally spaced circumferential series ofspurs on its inner face, a chain connected with one side edge of saidplate at a point between said series of spurs and detachably engagedwith the other a side edge, and'a wire receiving pulley mounted on theouter face of said plate at the'center thereof. V J a In testimonywhereof I afiix my signature in presence of two witnesses.

v FRANK w. SCHUMACHER.

Witnesses: I i

' WALTER W SQHUMACHEB,

HERMAN HELLER.

